"Nice to meet you. Please call me ...'Estu.'"

"That sounds like a fake name."

"Yes. Only my master knows my real name. My master is quite possessive, so he doesn't let me reveal my name in front of others."

"...Your master is quite harsh."

Not letting her expose even her skin, matching her in office wear down to black stockings—he's quite the pervert.

"...You became a dungeon master thanks to my master, you know? No matter how much of a historic piece of trash pervert my master is, if you're receiving support from the [System] my master created, keep quiet."

"Who's your master?"

"Lord Solomon."

If it's the Demon King, I'll acknowledge it. I made the sign of the cross briefly in a repentant mood. Estu looked around with a wistful expression.

"Hmm.... This place is also very nostalgic."

"Was there something here?"

"Yes. Do you know [Baal], the number one of the 72 dungeons?"

"Of course I do."

How could I not know the next Demon King who's holding his ground alone against an entire kingdom on the frontlines with the human alliance?

"This is where Baal first started before he moved."

"Whoa."

The empty house was the territory of a bigger shot than I thought.

"So am I going to lose my head to Baal?"

"No? Baal himself probably won't try to reclaim this place. It's where he once got his main base raided and barely escaped with just his and his subordinates' lives. Rather, if you restore the dungeon here, he'll be grateful."

"I see. That's a relief."

No wonder magic stones kept appearing the more I dug. It made sense that some traces remained since it was a dungeon before.

"So about why you came...."

I looked Estu up and down and couldn't help but salivate.

An office lady succubus that I thought I'd never see in this world. My genitals that had been lowered in front of her level and stars felt like they were standing up stiffly again, but—

"...Hehe?"

"No, this is an unavoidable physiological response."

I was briefly aroused by Estu's figure and the office wear that revealed all her curves, but if I touched the Demon King's woman, my head might end up on an ancestral altar.

"Hmm. So you get why I came, right?"

"You said it's a dungeon outside management."

Demon King Solomon created 72 dungeons under him. [Forneus's] dungeon where I was is one of them.

"But there are other dungeons besides the Demon King's, right?"

"Dungeons that don't receive the Demon King's [System] support."

"Aha."

"All 72 dungeons receive support from the dungeon management system created by the Demon King. With the help of the magical formula the Demon King created, you can build dungeons very easily."

Estu was a powerhouse I could barely look up to, but seeing her explain so kindly, Estu was an angel. A succubus with demon wings, but still.

"It seems you've also received quite a lot of help. Right?"

"Yeah. Thanks to that, I got 30 subordinates in four days."

"...Yes. That's what's quite troublesome right now."

Estu pointed to the entire cavity with a troubled face. In a world that had turned completely gray, Estu pointed at the facilities one by one.

"I don't know how much you know about the dungeon system, but you're developing the dungeon too quickly."

"...?"

What the hell are you talking about?

"What kind of bullshit are you spouting?"

"Bullshit? How long have you been a dungeon master?"

"Hmm...4 days?"

Today marks exactly the 4th day.

"Right. Four days. Then has there ever been a case in history of someone building a dungeon to this extent in just four days?"

"Doesn't everyone do about this much?"

"Ha."

Estu snorted. Rather, it was an expression of what kind of bullshit is he spouting.

"You, judging just by your performance up to the third day, you'd be in the top 10 throughout all dungeon history."

"...This development speed ranks in the top 10? Are demons idiots?"

"You're the strange one. It's strange to develop a dungeon like this on your own without receiving initial guide support. Wait a moment."

Estu swiped through the air with her finger, rummaging through something. It looked just like swiping through screens, so I felt a sense of kinship.

"Ah, found it. Normally it takes 7 days to build a summoning facility Lv.2, you know?"

"It takes 7 days to summon this?"

"That's why you're strange! Where in the world does someone fill up all 10 summons every single day?"

"Isn't it normal to do all 10 summons if they give you 10?"

"No. Who says that?"

"I do."

I realized. There was an incomprehensible gap between me and Estu.

"...Let's just say you have an exceptional talent for dungeon development. Yes. Enough to summon a ★★★ level monster in just four days."

"Summon? Not evolve?"

"Yes. Summon."

Estu raised her heel and tapped the summoning circle.

"That ★★★ that was about to be summoned just now, I blocked it briefly and popped out instead."

"Hey."

I attempted a summon with a 10% probability and she blocked it? I was filled with unstoppable rage, but my anger naturally subsided before that level 255.

"When this conversation ends, will it come out right away then?"

"...That's why I'm troubled and popped out. Up to 2-star you can close your eyes and pretend, but from 3-star, records remain. Monster summoning is like the Demon King's dungeon randomly dispatching to each dungeon."

"Is that place some kind of factory?"

"Yes. To beat the human alliance, quantity is the answer."

I learned something new. Who knew the monsters summoned to each dungeon were monsters directly supplied by Solomon?

Then it made sense that there was a limit of 10 per day.

"Solomon must be very busy."

"Yes. He's busy with production activities today too."

"...So can't the 10-time limit be increased?"

"It might be 10 times for you, but if all dungeons run 10 times each, Lord Solomon has to cum 720 times a day."

I gained newfound respect for the Demon King. And I also felt how great the Demon King's desire to conquer the human alliance was.

"Being a Demon King seems like a shit job."

"It's Lord Demon King's great will to make this world demon territory. The Demon King is truly exceptional in that regard."

Estu's eyes scanned my dejected member.

"Hmm, how do I compare to the Demon King?"

"...How can I compare when I haven't even done it with you?"

"That's true. Then how about we test it now?"

"Fat chance. I don't do it with anyone below level 99. I might break it."

One more reason to reach level 100. Estu stared at my increasingly energized genitals for a while and smirked.

"Seriously.... Should I say you're honest. Fine. I understand it standing up randomly, so don't try to force yourself to release. Right now explaining is urgent."

"What explanation?"

"About 'summoning.' You'll probably figure out everything else on your own, but the summoning facility linked to the Demon King's castle is a different story, right?"

Estu drew a line on the floor with her heel.

"If they know you summoned a 3-star, it'll be recorded, and other demons will notice your dungeon and come to invade. To eliminate you from the start."

"That makes sense."

If I were them, I'd trample anyone rising from below too.

"It's a dungeon outside management, so even if the Demon King takes sides, he'd side with the 72 dungeons, not you. No matter how capable you are."

"Right."

"So my proposal is this."

Estu displayed text in the air with magic power.

[Normal Summon]

[★☆☆☆☆]

[★★☆☆☆]

"Deal."

"Before I even explain?!"

"Instead of not sending ★★★ or higher, you'll send quality ones that can evolve up to 5-star, right?"

"...If only other demons' heads worked as well as yours."

Estu sighed but looked at me with a proud expression.

"...Of course I can't send all ones that can evolve to 5-star. Hundreds of monsters are born every day, and they spread to 72 dungeons."

"I understand fully."

Just being able to summon 5-stars is more than enough to be grateful for. Estu blinked and spread five fingers.

"Just so you don't misunderstand, having 5-stars doesn't mean 5-stars will appear, okay? The better the summoning facility's condition, the better monsters can be dispatched."

"Got it, just tell me the probability."

"...Since you're smart, there's no fun in teaching. Tsk."

Estu pouted her lips and provided me with data on probabilities.

[Normal Summon: Lv.5]

[☆ 35%]

[☆☆ 35%]

[☆☆☆ 20%]

[☆☆☆☆ 15%]

[☆☆☆☆☆ 5%]

"5-star is 5%? That's generous."

"...What incomprehensible words. It might come out or it might not. If the Demon King's condition isn't good, there are days when 5-stars don't appear, and there's also the possibility of being summoned to another dungeon."

Incompetent Demon King.

"What about innate 2-stars?"

"Statistically, about 20% of the normal probability are born as ★★. That's also just statistics, so it's not an exact number."

Estu was also quite troubled about the probability part.

"...And your summoning facility is currently quite low grade, and what I just showed you is what it'll be like when fully upgraded."

"What? Then what's max level?"

"Level 5. Right now it'll be like this."

[Normal Summon: Lv.2]

[☆ 15%]

[☆☆ 40%]

[☆☆☆ 40%]

[☆☆☆☆ 5%]

"This is your summoning facility's probability."

"What, give me back my 5-star."

"If you want to pull a 5-star, raise your summoning facility to at least level 3. The receiving side also needs to be prepared to that extent to send them."

Estu scanned the facilities once more, checked the watch on her wrist, and clicked her tongue.

"Tsk, the time. Anyway, the urgent fire is out, so now develop the dungeon as you please. The Demon King is also secretly looking forward to it."

"The Demon King knows?"

"Did you think he wouldn't know when you're using the Demon King's system? The Demon King has expectations, so I was deployed. If it were others, they couldn't have come."

"Huh."

To think I'm receiving enough attention to deploy a 6-star level 255.

"What if I start a rebellion? I already have a record, you know?"

"Then system support gets cut off. Do you have a reason to rebel against the Demon King?"

"Yeah. You."

I pointed at Estu.

"To eat you, I think I'll have to catch the Demon King."

"...Pfft."

Estu smirked. The corner of her mouth twitching seemed like she was both mocking me and pleased by my boldness.

"Lord Demon King would really like that. If a demon who grew using his system eventually grows strong enough to try to devour him."

"Right. Hehe, demons are survival of the fittest, right? When the strong one is relaxing, you have to strike quickly. And later on...."

I reached out my hand, but Estu very lightly avoided my touch.

"I'll eat you. Without fail."

"...You really make me look forward to it. Really. Good. If the Demon King heard this, he probably would have said he welcomes it."

Estu gave two thumbs up with both hands then frowned.

"Ah. I really don't have much time left. I'd like to talk more, but I'm really busy. I'll answer just one thing. Do you have any questions?"

"Just one...."

There are many things I'm curious about. Some I've found answers to myself, some seem like answers but are fuzzy, and many I have no clue about.

But what I want to ask Estu is just one thing.

"Was it you?"

"...."

Estu only pressed her index finger to her lips, winked one eye, and disappeared into the darkness.

A moment later.

The world regained its color, and I let out a sigh.

"...I'm glad my head is still attached."

I was so afraid my head might fly off at every moment. My mouth was parched.

'Anyway, I survived.'

I survived, so that's enough, and I'll continue to survive.

"Master?! What came out...?"

"Yeah. I almost pissed myself."

There was nothing on the summoning circle where the black darkness had disappeared, and instead there were just 2 Monster Summoning Tickets left that hadn't been torn.

2 tickets?

"...The service is subtly good."

"Master. Look at this, this."

The Monster Summoning Ticket Lune picked up had a red lipstick mark on it.

"Uh.... The inside seems to be glowing?"

"Wait."

I carefully unfolded the inside, and rainbow light was sparkling inside.

"I love you, Lord Demon King."

Whether it was her or not, I don't know, but anyway, I was sincerely grateful to the Demon King.

Whoosh!

A moment later.

As purple mist rose, a rainbow-colored aura rose from the summoning facility.

If you find any errors ( broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.